Dynamo-electric machine.



' No. 729,219. PATENTED MAY 26, 1903..

H. G. REIST.

DYNAMO BLEGTRIG MACHINE.

APPLICATION II'LBD JAN. 6, 1903.

5' 2 SHEETS-SHEET 1.

110 IODEL.

4 Fig. I.

Witnesses. Inventor". g Q y .2 I Henry 6. Heist.

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- 'PATENTED MAY 26, 1903..

H. e. 'RBIST. DYNAMO ELECTRIC MACHINE.

APPLICATION rum) n11; e, 1903.

2 SHEETS-SHEET 2 K0 IODEL.

Inventor" Henry G. Heist. aa- MAM DItty.

Witnesses. 013 M No. 729,219. 7 Patented May 26,1905. UNITED STATES PATENT OFFICE.

HENRY G. REIST, OF SOHENEOTADY, NEW YORK, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

DYNAMO'-ELECTR|C MACHINE;

SPECIFICATION forming part of Letters Patent No. 729,219, dated May 26, 1903.

Application filed January 6, 1903. Serial No, 137,993. No model.)

T at whom it may concern: ends with lugs 7 and 7 The lugs 7 are Be it known that I,-I-IENRY G. REIsT, a citiformed with a threaded opening and the lugs zen of the United States, residing at Schenec- 7 are formed with unthreaded openings. The tady, in the county of Schenectady, State of openings in the lugs in adjacent ends are in New York, have invented certain new and line with one another. A bolt 8 is threaded usefullmprovementsin Dynamo-ElectricMain the opening in the lug 7 and is provided chines, of which the following is a specificawith a projection on its head which enters the tion. opening in the lug 7. The head proper of the In the construction of dynamo-electric mabolt bears against the lug 7. The head of lo chines of certain types, particularly of the this bolt may be provided with one or more larger sizes, the provision of means by which spanner-openings 8, by means of which the the ends of the armattire-conductors projectbolt can be rotated. ing beyond the ends of an armature-core may It will be readily understood that on rotatbe satisfactorily held in position is an imporing the bolt 8 in the proper direction the ends 15 tant matter. It is highly desirable that the of adjacent strips (5 will be separated and the securing means shall take up but little space diameter of the annular member 6 will be inand that they do not interfere with an efficreased, and thereby the projecting conductor cient ventilation of the apparatus. The ob ends will be securely clamped against the exject of my present invention is the production ternal support 4. 20 of means to secure these results. Each strip 6 is provided intermediate its In the accompanying drawings, of which ends with a lug 9, having an elongated slot Figure 1 is a partial sectional elevation and 10 formed in it. The lugs 9 rest against the Fig. 2 is a perspective view of details, I have ends of posts 11, carried by the armatureillustrated one embodiment of my invention. frame. The posts prevent the member Ufrom 25 Referring to the drawings, a field member 1 slipping down out of position. Projections 7 5 is shown as placed within an annular arma- 12 at the end of the post 11 enter the slots 10 ture-core 2. It is immaterial which of these in the lugs 9 and assist in the assembling of members is the revolving one, but in the parthe apparatus. By reason of the elongated ticular machine which I have illustrated the shape of the slot 10, however, the posts 11 do 30 internal field l revolves about a vertical axis. not interfere with the expansion of the mem- The insulated ends 3 of the armature-coils her (3. project a considerable distance beyond the The annular body 5 is formed of sections ends of the core 2, as I have conventionally which are similar in all respects to the secillustrated them, and thus form what maybe tions (3, except that they are not provided 3 5 termed annular flanges at each end of the with the lugs 9, since by reason of the inclined armature-core. These flanges are not exactly position of the conductor ends no necessity cylindrical, but are shaped so that the diameexists for the use of supporting means similar tor of the space inclosed by them is somewhat to the posts 11 for holding the body 5 in posigreater at the outer ends of the conductors tion. 0 than adjacent to the core ends. It will of course be understood that suitable c The conductor ends are supported exterinsulation is inserted between the projecting nally by an annular member 4, which is supconductor ends and the supports. ported in turn from the frame of the arma- \Vhat I claim as new, and desire to secure ture. The conductor ends are held against by Letters Patent of the United States, is 4 5 the support -.L by internal annular members 5 1. In a dynamo-electric machine of the in- 5 and 6. The annular member 6 is formed of ternal revolving field type, an armature hava number of curved strips or sections (3, which ing a hollow cylindrical core, armature-eonare placed end to end, as shown in Fig. 2. ductors projecting beyond the core, supports The strips are shown as shaped like channelcarried by the core for supporting the pro- 50 bars, and each strip is provided adjacent its jecting ends externally, and adjustable means applied internally for forcing the conductor ends against the external support.

2. In a dynamo-electric machine, a hollow core, conductor ends projecting beyond said core, and expansible means for engaging said projecting ends on their inner sides to hold them outward.

3. In a dynamo-electric machine, an armature having a hollow core and conductors projecting beyond the ends of said core, means ing the said projecting ends on their inner.

sides, and means for increasing the diameter of said annular body.

5. In a dynamo-electric machine, a core, conductors extending beyond the ends of said core, means for holding said projecting ends in position, comprising a support engaging said projecting ends on their outer sides, and an expansible annular body for engaging said ends on their inner sides.

6. In a dynamo-electric machine, a core, conductor ends extending beyond the ends of said core to inclosc a substantially cylindrical space, an annular ring for engaging said projecting ends externally, and an internal expansible member for forcing said ends against said annular ring.

7. In a dynamo-electric machine, a hollow 'core, conductors extending beyond the ends of said core, means for holding said projecting ends in position, comprising an. annular body placed to engage said projecting ends on their inner sides, means for increasing the diameter of said annular body, and means for preventing axial displacement of said annular body.

8. In a dynamo-electric machine, an armature having a hollow core and having conductor ends projecting beyond said core, the armature being so disposed that the axis of said hollow core is vertical, an annular body for engaging the projecting conductor ends at their inner sides, means for increasing the length of said annular body, and supports for preventing the axial displacement of said annular body, said supports and said annular bodyhaving a pin-and-slot engagementwhereby the connection between said body and said supports does not interfere with the adjust ment of the length of said annular body.

9. A means for holding in position a series of flexible pieces arranged to inclose a space substantially cylindrical, which comprises an outer support for said members and an inner clamping member composed of a series of curved sections placed end to end to form an annular body, and a bolt threaded into each section adjacent one end thereof and having its head swiveled in the other end of the adjacent section whereby the length of said annular body can be increased to firmly clamp said members against said outer support.

10. In a dynamo-electric machine, a core, conductors carried thereby and extending beyond the ends of said core, an external support for said projecting conductor ends, and an internal supporting member independent of said core.

11. In a dynamo-electric machine, a core, conductors carried thereby and extending beyond the ends of said core, an external support for said projecting conductor ends, and adjustable means applied internally for forcing the conductor ends against the external support.

In witness whereof I have hereunto set my hand this 5th day of January, 1902-3.

HENRY G. REIS'I.

\Vitnesses BENJAMIN B. IIULL, HELEN Onronn. 

